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NEC Quiz: Article 250, Part Sixteen

Quiz Questions

Code Quiz: Article 250, Part 16

Based on the 2008 NEC

Questions and answers written by Mark Lamendola, who has worked as a master electrician, electrical inspector, and design engineer. Mark is an IEEE Senior Member, and the Code article author for Codebookcity.com. He is a former editor of an electrical magazine were he edited Code articles.

  1. What is the topic of Article 250, Part VII and why do you need to know this?
     

  2. Why is the title of Article 250, Part VII incorrect?
     

  3. Article 250, Part VII lists all kinds of electrical equipment to connect to the Equipment Grounding Conductor (EGC). What about non-electrical equipment?
     

  4. Are there more than a dozen types of EGC or less than a dozen?
     

  5. At what wire gage (and larger) does an EGC have to meet specific requirements?

 

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How the NEC is arranged

  1. The first four Chapters of the NEC apply to all installations.
  2. Article 90 precedes Chapter One, and establishes the authority of the NEC.
  3. Article 80 follows the body of the NEC; it exists as Annex H. It provides the requirements for administration.
  4. Chapters 5, 6, and 7 are the "special" chapters, covering special: occupancies, equipment, and conditions (in that order).
  5. Chapter 8 provides the requirements for communications systems.
  6. Chapter 9 provides tables.
  7. The appendices provide mostly reference information.
  8. Appendix D contains examples that every NEC user should study.

 

 

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